In 2023, the stock market, led by major tech companies, saw significant gains with the S&P 500 up by 26%, while the fixed income market experienced unexpected fluctuations in interest rates. Looking ahead to 2024, the stock market is considered more expensive, with expectations of continued growth and margin expansion, especially in tech sectors influenced by AI, while the fixed income market faces challenges with debt rollovers and potential for strong yields in high-rated areas. The U.S. economy remains resilient with steady growth and moderating inflation.